once you have run out of sap, just open the valve at both ends to allow air movement and the copper will be fine
once you have run out of sap, just open the valve at both ends to allow air movement and the copper will be fine
2010 - Visit a sugar camp, went home and tapped 6 trees that night
2011 -65 taps, homemade evap, homemade sap puller, concerned wife
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